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/*
* Copyright © 2014 IIMarckus <imarckus@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void
putuint32BE(uint32_t n, FILE *f)
{
fputc(n >> 24, f);
fputc(n >> 16, f);
fputc(n >> 8, f);
fputc(n, f);
}
int
main(int argc, char *argv[])
{
bool efflag, sameptrflag;
int i, runsum, numptrs;
long size, cursize;
uint32_t *ptrs, *runsums;
FILE *f;
uint8_t buf[8192];
char *ep;
if (argc != 3) {
errx(1, "Usage: padff size file");
}
size = strtol(argv[1], &ep, 0);
if (argv[1][0] == '\0' || *ep != '\0') {
errx(1, "invalid size '%s'", argv[1]);
}
if (errno == ERANGE && (size == LONG_MAX || size == LONG_MIN)) {
errx(1, "invalid size '%s'", argv[1]);
}
f = fopen(argv[2], "rb");
if (f == NULL) {
err(1, "Could not open file '%s'", argv[2]);
}
fseek(f, 0, SEEK_END);
cursize = ftell(f);
if (cursize > size) {
errx(1, "size %d is smaller than current filesize", size);
}
fseek(f, 0, SEEK_SET);
for (i = 0; i < cursize; ++i) {
fputc(fgetc(f), stdout);
}
int padspace;
padspace = size - ftell(stdout);
for (i = 0; i < sizeof buf; ++i) {
buf[i] = 0xff;
}
while (padspace > sizeof buf) {
fwrite(buf, sizeof *buf, sizeof buf, stdout);
padspace -= sizeof buf;
}
fwrite(buf, sizeof *buf, padspace, stdout);
return 0;
}
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